Improved bsd bottom



NAPETERS. PMOTO-LUHOGRAFMER, WASHINGTON. n 2A strut ggftre.

@uiten gisten n. M. THoMAs, or lno Waerme, Mrcnreiin.

, Letteren-emiro. 61,775, amel/'enum 5, 1867.

rnrnovnn een BOTTOM.

@in clgehule metten to' im ilgese titers ntc'ut :mt mating 'pnt nt tige sume,

T0 ALL WHOM IT MAY CONCERN:

Be it known that'I, D. M. THOMAS, of=-Dowagiac, Cass countyLState of Michigan, have invented a new. nndmprovedrSprin'g Bed Bottom; and I cio-hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making a part of thisspecitiation, irl-Which- Figure 1 is a longitudinal section, taken vertically through the improved bed bottom.

Figure 2 is a 'topiview of the bed bottom.

Figure 3 is a bottom view.

Similar letters of reference indicate corresponding parts in the several figures.

This invention consists' in constructing bed' bottom of narrow spring strips arranged side by`side in parallel rows, and secured ininclined planes, crossing each other in such manner that the- Weight to be sustained will be received upon the upper ends, and inclined surfaces of said springs, and a very comfortable andelastic support will be afforded, as will be hereinafter described.

To enable others skilled in the ,art to understand my invention, I Will describe its construction and operation. Y

In the'accompanying drawings, A'A represent two longitudinalbars which are secured together parallel to each other, and at' a suitable distance apart, by means of cross-bars B B, thus'forming a frame for sustaining the springs and keeping them in place. The cross-bars B B are secured to bars A A, in pairs, as shown in the tivo gures, 2 and 3,`and each pair is adapted for sustaining two rows of springs.` Said bars are notched. on their upper and loner corners for the purpose of receiving narrow springs C C and alfording'lateral support' for keeping these springs in their proper places. Thesprng- C may be made oi' lWood or oimietal or other suitable substance, and those portions which extend above thebars B may .be reduced in thickness so 'as to give them the proper degree of elasticity. The but ends of these springs are secured rmly to the bottom sides of the bar B, and extend upward in inclined planes so as to lie in notches tvhich are made in thel upper sides' of the bars B. The springs are arranged side by side at suitable distances apart, and those springs which are secured to the bottom of one bar lie upon and are supported by the bar lying nearest to it. By this arrangement the springs are inclined 'in opposite directions, and each' spring is sustained at two points by each pair of bars B. I To prevent the upper ends of the springs frolvrising above their natural yplane they are connected together by cords a a, as showuin igs. 1 and 2.

I donot conne my invention toany definite number of springs, as the number will be increased or diminished according to circumstances. Nor do I confine my invention to the abovedescribed arrangement of springs for a bed bottoni, as' such arrangement may be adopted for seats, sofas, and for other purposes.

I am aware that bed bottoms have been constructed 'of inclined springs, secured at the ends of a frame, and having strips attached to their ends, but these I do not claim as my invention. It will be seen that I have an arrangement of inclined springs by which 'straight strips are dispensed with and the entire 'supporting surface made up of springs. y

Having described my invention, what I claimas new, and desire to secure by Letters Patent, is

A spring seat or bed bottom which is composed of inclined springs that are supported and held in place by means of transverse bars B, substantially as I have herein` described.

D. M. THOMAS.

Witnesses STRAWTHER BOWLING, PHILONA BOWLING. 

